package com.x.Part5_String.StringBuilder;

import java.util.Scanner;

/**
 * ClassName: Test
 * Package: IntelliJ IDEA
 * Description:
 * Written by HanXu
 * Create 2024.03.15 11:14
 */
public class Test {
    public static void main(String[] args) {

        //接受字符串
        Scanner scanner = new Scanner(System.in);
        String str = scanner.next();

        //反转字符串
        StringBuilder sb = new StringBuilder(str);
        String result = sb.reverse().toString();


        if (str.equals(result))
            System.out.println("对称");
        else
            System.out.println("不对称");
    }
}
